[Yukon]

Here is an excellent article on the Allison and Merlin engines.

http://en.wikipedia.org/wiki/Allison_V-1710

 

[Kevin Horton]

Here is an excellent article on the Allison and Merlin engines.
]

I think you'll be happier with a Lycoming than one of these alternative engines John. They really aren't that reliable. Too complicated, and not enough service history in our application.

 

[N258RE]

I think you'll be happier with a Lycoming than one of these alternative engines John. They really aren't that reliable. Too complicated, and not enough service history in our application.

he's right,
but did fail to mention there is also enough horsepower in either to tear the skin off a RV